How to Unlock a Master Padlock #3 Without a Key

Master Lock imports padlocks, combination locks and other security products for industrial and commercial use. The company's No. 3 padlock is a commercial grade keyed lock encased by a hard laminated shell. Master Lock's No. 3 padlock is intended to secure tool cribs, construction equipment, vending machines and storefront or business gates. Because of this lock's resistance to cutting and picking, a replacement key should be obtained if you wish to open it.

Things You'll Need

• Key number

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Instructions

1. • 1

     Contact Master Lock and request a set of replacement keys. This step requires that you know the identification number printed on your old set of keys. See the "Resources" section below for Master Lock's contact information.

   • 2

     Bring your key number to a hardware store or professional locksmith to have it duplicated.

   • 3

     Take your No. 3 padlock to a hardware store or professional locksmith if you have lost or do not remember your key number. The technician will make an impression of your lock and create a new set of keys which will unlock it.